Render Target override color

Hey,

I coded a blueprint what can draw on a render target.
The problem is: It adds the specific color to another, but doesn´t override it.
That melt all colors till I get white. I can upload an image of my blueprint or material if you need it.
Does somebody knows how to override the last color on my render target?

Greetings

Have you solved this problem?
I’m trying to solve the same problem.

I didn’t solve it. :S